For four decades, this extraordinary textbook played a pivotal role in the way biochemistry is taught, offering exceptionally clear writing, innovative graphics, coverage of the latest research techniques and advances, and a signature emphasis on physiological and medical relevance. Those defining features are at the heart of this new edition. The ninth edition of Stryer/Berg Biochemistry focuses on the themes of visualization and assessment and is now paired for the first time with SaplingPlus, the most innovative digital solution for biochemistry students. SaplingPlus offers the best combination of media-rich resources to help students visualize material and develop successful problem-solving skills to master complex concepts in isolation, and draw on that mastery to make connections across concepts. Built-in assessments help students keep on track with reading and become proficient problem solvers with guidance from hints and targeted feedback, ensuring every problem counts as a true learning experience.